Error submitting to PBS: qsub: submit error (Maximum number of jobs already in queue MSG=total number of jobs in queue exceeds the queue limit: user medea@mufasa.nwu.ac.za, queue chem-2)

Files:
           1088 Jul 04 15:43:48 INCAR
             55 Jul 04 15:43:48 KPOINTS
           4694 Jul 04 15:43:48 POSCAR
         792810 Jul 04 15:43:48 POTCAR
             41 Jul 04 15:43:48 mdlicense.txt
           5560 Jul 04 15:43:48 script
            248 Jul 04 15:43:48 state.dat

Starting VASP at Tue Jul 04 15:43:48 SAST 2023
Error executing VASP Tue Jul 04 15:43:52 SAST 2023: error renaming "OUTCAR": no such file or directory

error renaming "OUTCAR": no such file or directory
    while executing
"file rename -force OUTCAR VASP_OUTCAR"

error copying "CONTCAR": no such file or directory
    while executing
"file copy -force CONTCAR VASP_CONTCAR"

Files:
           1135 Jul 04 15:43:48 INCAR
             55 Jul 04 15:43:48 KPOINTS
           4694 Jul 04 15:43:48 POSCAR
         792810 Jul 04 15:43:48 POTCAR
            979 Jul 04 15:43:49 VASP-12958.v-hpc-medea.nwu.ac.za-32000
           1135 Jul 04 15:43:48 VASP_INCAR
             55 Jul 04 15:43:48 VASP_KPOINTS
             41 Jul 04 15:43:48 mdlicense.txt
           5560 Jul 04 15:43:48 script
            248 Jul 04 15:43:48 state.dat
            187 Jul 04 15:43:52 stdout